Johnson, James A., author
Delmar Cengage Learning, 2013
Buku Teks
Finkler, Steven A., author
Prentice-Hall, 2001
Buku Teks
Zelman, William N, author
Jossey- Bass, 2009
Buku Teks
Olden, Peter C., author
AUPHA Press, 2011
Buku Teks
Buchele, Robert B., author
McGraw-Hill, 1977
Buku Teks